but all this does is use the last attribute, which is what I had expected it to do.

Is there some other method I can use to do this so that I get both bold and italic to show on the same part of the label?

Edit

I wanted to include my fonts that are in the project, so it's clear that I've already imported them. The second image is the list of fonts on the storyboard. While it's covered up, the family is in fact